Bio 119 Lab Exam

Pinus Male Cone

Pinus Female Cone

Pinus Mature Embryo

What do the pollen grains arise from and by what type of cell division

spores by mitosis

what will the megagametophyte of gymnosperms give rise to and by what type of cell division

eggs by mitosis

what serves as the nutrient source for the germinating seed of gymnosperms

ovule

are sporophytes diploid or haploid

diploid

What types of tissues are seen in stem of pteridophytes

dermal, vascular, ground

what generation is dominant in pteridophytes

sporophyte generation

what generation is dominant in gymnosperms

sporophyte generation

archegonium

female reproductive, produces eggs

antheridium

male reproductive, produces sperm

Pinus Young Embryo

Fern Gametophyte Antheridia

Psilotum Stem

Fern Gametophyte Archegonia

Fern Young Sporophyte example 1

what does the gametophyte of the fern arise from?

germinating spore

is sporophyte or gametophyte generation dominant in seedless vascular plants

sporophyte generation

Fern Young Sporophyte ex 2

what advantage does vascular tissue provide to ferns over mosses?

the transportation of water and minerals (like a vacuum) and allows them to grow upwards away from the ground, towards the light

is the stem gametophyte or sporophyte generation

sporophyte gen.

is archegonia and antheridia gametophyte or sporophyte generation?

gametophyte generation

is the bryophyte thallus gametophyte or sporophyte generation?

gametophyte gen.

spores are created by what type of cell division?

meiosis

eggs and sperm are created by what type of cell division?

mitosis

Sperm Cells

antheridium

Egg cells

archegonium

Male mating patterns

want to mate with as many organisms as possible

Female mating patterns

picky with who they mate with because they want high quality offspring

If spores are produced by meiosis are they diploid or haploid

haploid

what cell division would produce multicellular, haploid gametophyte from a unicellular haploid spore

mitosis

Marchantia thallus

Marchantia archegonia

Marchantia antheridia

Marchantia mature sporophyte

Bryophytes

non-vascular plants

what structures are being produced in the archegonia and antheridia respectively

egg and sperm cells

what event leads to the production of the sporophyte

fertilization

Eudicot

vascular bundles in a ring, can have secondary growth

Vascular Cambium

meristem for secondary growth in woody plants

single tissue layer between xylem and phloem

produces new xylem and phloem

Monocot

scattered vascular bundles, no secondary growth

root hair

Root cross section

Lilac leaf

Woody stem

Herbacious stem/dicot stem

Monocot stem

Herbacious

No growth rings

Before secondary growth

Corn Leaf

Endodermis

wraps around and protects vascular bundle in roots from pathogens, bacteria, etc.

what part of this embryo is the arrow pointing to?

cotylodons

what part of the life cycle of the Angiosperm is this ovule?

gametophyte

what is the ploidy of the Angiosperm ovule?

haploid

what is the arrow pointing to in this Angiosperm

endosperm

what is the ploidy of the pollen grains in this Angiosperm

haploid

what part of the Angiosperm embryo is the arrow pointing to?

shoot meristem

what part of the flower is circled

stamen

what is the ploidy of the cross section of the Angiosperm corn seed

triploid

what is the ploidy of the ovary seen here

diploid

what part of the flower is seen here

carpel

dicot flower bud (4 sepals)

lilly ovary

lilly anther